See the bottom of this list: http://cdda.estilofusion.com/search?q=%26
So, RV Kitchen Unit, FOODCO Kitchen Buddy, Onboard Chem Lab, Vehicle Welding Rig and Vehicle Forge Rig. Conveniently, all can be crafted, but RVs sometimes have them already installed. All except the forge rig come with 400 units of space. I’ve got them all packed into a 2x3 (plus 1x1 driver’s seat/controls space), and it works, but it’s extremely cramped and I could use more solar panels.
There’s also the mini fridge, which isn’t technically a tool, but is useful. They aren’t craftable, but they can be found in RVs or more commonly in ice cream carts in parks. I’ve heard they eat a lot of power though.
Hope that helps with your vehicle planning! Show it off in the thread when you’re done.